Inches and centimeters in braille

• Center groove provides a better grip
• Made of durable plastic
• Back side of ruler lays flat for easy measuring
• Braille markings for 1/8, 1/4, 1/2, and 1 inch up to 12 inches on top of ruler
• Braille markings on every 1/2 and full centimeter up to 30 cms on bottom of ruler